did anyone who fitted one genuinly see an improvement in anything? are they a worth while mod?

they claim, better hp, torque, smoother revs, brighter lights, loadsa stufff...

 

I made, and fitted my own, I reckon tickover was better, plus starting was much surer, even stone cold in the dead of winter.

Apart from those two? I think you'd need RR time before and after to be sure

It doesn't do any HARM though, and for what it costs and the time taken..........

 

or make your own

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